Holtmann, L., Hans, S., Kaster, F., Mueller, V., Lang, S., Goericke, S., Lang-Roth, R. and Arweiler-Harbeck, D. (2021). Magnet dislocation following magnetic resonance imaging in cochlear implant users: Diagnostic pathways and managment. Cochlear Implants Int., 22 (4). S. 195 - 203. ABINGDON: TAYLOR & FRANCIS LTD. ISSN 1754-7628

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Abstract

Objectives Although modern cochlear implants (CIs) are approved for magnetic resonance imaging (MRIs) adverse events still occur with unacceptable frequency. Methods: In this retrospective study, magnet displacement due to MRIs was analysed. Relevant factors e.g. symptoms during MRI, diagnostics, surgical intervention following the diagnosis and possible subsequent damage were assessed. Results 16 patients were enclosed. All patients complained about pain while the scan was conducted. Computed tomography (CT) scans of the temporal bone or X-rays of the skull were performed to confirm diagnosis. Artefacts on CT scans delayed immediate diagnosis in some cases. Discussion Despite various studies demonstrating the range of adverse events related to CIs following MRI, little information is available on diagnosis and radiologic recognition of magnet dislocation. In patients complaining about pain following an MRI scan an X-ray of the head should be performed immediately. Most adverse events occur in radiological centres without expertise in cochlear implants. Conclusion Comprehensive training of patients, surgeons and radiologists is the most efficient tool to prevent damage to the CI and the patient. X-ray of the skull is suggested to be used as the method of choice in imaging.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Holtmann, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hans, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kaster, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mueller, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lang, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goericke, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lang-Roth, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Arweiler-Harbeck, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-572375
DOI: 10.1080/14670100.2021.1872906
Journal or Publication Title: Cochlear Implants Int.
Volume: 22
Number: 4
Page Range: S. 195 - 203
Date: 2021
Publisher: TAYLOR & FRANCIS LTD
Place of Publication: ABINGDON
ISSN: 1754-7628
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
DISPLACEMENT; MRI; PREVALENCEMultiple languages
OtorhinolaryngologyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/57237

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